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25 pages, 540 KiB  
Article
Karaites: Their Names and Migration Routes
by Alexander Beider
Genealogy 2025, 9(3), 75; https://doi.org/10.3390/genealogy9030075 - 25 Jul 2025
Viewed by 342
Abstract
The article provides an analysis of the geographic origins of Karaites in four areas where Karaite congregations were commonly found after the Middle Ages, namely, Arabic Middle East (territories of modern Iraq, Syria, Israel, and Egypt), Constantinople/Istanbul and its area, the Crimean Peninsula, [...] Read more.
The article provides an analysis of the geographic origins of Karaites in four areas where Karaite congregations were commonly found after the Middle Ages, namely, Arabic Middle East (territories of modern Iraq, Syria, Israel, and Egypt), Constantinople/Istanbul and its area, the Crimean Peninsula, and Eastern European territories belonging today to Lithuania and Ukraine. It combines available historical, onomastic, and linguistic data revealing the migrations of Karaites to and inside these regions. For the first two regions, no ambiguity exists about the roots of local Karaites. Their ancestors were Jews who adopted the Karaite version of Judaism. For the Crimean communities, various factors favor the hypothesis about the territories of the Byzantine Empire (which later became Ottoman), and more specifically, Constantinople and its area are the only major source for their development. The Karaite communities in such historical Eastern European provinces as Lithuania (properly speaking), Volhynia, and Red Ruthenia were created after migrations from Crimea to these territories. The article also discusses medieval, cultural, and potentially genetic links between Karaites and Rabbanite Jews in the areas in question. It also addresses one phonological feature, the sibilant confusion, shared by the Galician–Volhynian dialect of the Karaim language and the Lithuanian dialect of Yiddish. Full article
36 pages, 401 KiB  
Article
The Democracy-Promotion Metanarrative as a Set of Frames: Is There an Indigenous Counter-Narrative?
by Hajer Ben Hadj Salem
Religions 2025, 16(7), 850; https://doi.org/10.3390/rel16070850 - 27 Jun 2025
Viewed by 468
Abstract
The Tunisian uprisings projected an elusive surrealistic scene that was an aberration in a part of the world where Islamic ideology had been considered the only rallying force and a midwife for regime change. However, this sense of exceptionalism was short-lived, as the [...] Read more.
The Tunisian uprisings projected an elusive surrealistic scene that was an aberration in a part of the world where Islamic ideology had been considered the only rallying force and a midwife for regime change. However, this sense of exceptionalism was short-lived, as the religiously zealous Islamist expats and their militant executive wings infiltrated the power vacuum to resume their suspended Islamization project of the 1980s. Brandishing electoral “legitimacy”, they attempted to reframe the bourgeoning indigenous democratization project, rooted in an evolving Tunisian intellectual and cultural heritage, along the neocolonial ideological underpinnings of the “Arab Spring” metanarrative, which proffers the thesis that democracy can be promoted in the Muslim world through so-called “Moderate Muslims”. This paper challenges this dominant narrative by offering a counter-narrative about the political transition in Tunisia. It takes stock of the multidisciplinary conceptual and analytical frameworks elaborated upon in postcolonial theory, social movement theory, cognitive neuroscience theories, and digital communication theories. It draws heavily on socio-narrative translation theory. The corpus analyzed in this work consists of disparate yet corroborating narratives cutting across modes, genres, and cultural and linguistic boundaries, and is grounded in insider participant observation. This work opens an alternative inquiry into how the processes of cross-cultural knowledge production and the power dynamics they sustain have helped shape the course of the transition since 2011. Full article
(This article belongs to the Special Issue Transitions of Islam and Democracy: Thinking Political Theology)
21 pages, 5091 KiB  
Article
Desertification and Agrifood Systems: Restoration of Degraded Agricultural Lands in the Arab Region
by Feras Ziadat, Giulia Conchedda, Fidaa Haddad, Jeremiah Njeru, Aurélie Brès, Mona Dawelbait and Lifeng Li
Agriculture 2025, 15(12), 1249; https://doi.org/10.3390/agriculture15121249 - 8 Jun 2025
Viewed by 1582
Abstract
The FAO estimates that 1660 million hectares globally are degraded due to human activities, with over 60% of this degradation affecting agricultural lands, including croplands and pastures. Given that 95% of global food production depends on land, this widespread degradation presents significant challenges [...] Read more.
The FAO estimates that 1660 million hectares globally are degraded due to human activities, with over 60% of this degradation affecting agricultural lands, including croplands and pastures. Given that 95% of global food production depends on land, this widespread degradation presents significant challenges to agrifood systems. This study compares patterns of human-induced land degradation in Arab countries with global and regional averages, examining drivers, impacts on agrifood systems, current yield gaps, and restoration opportunities. The results indicate that in the Arab region, two-thirds of the 70 million hectares affected by human-induced degradation—over 46 million hectares—are agricultural land, with croplands particularly impacted. However, with less than 4% of land in the Arab region designated for restoration, the region lags behind global targets. Restoring 26 million hectares of degraded cropland could reduce the yield gap by up to 50% for oil crops and help cereal, root, and tuber crops approach their potential yields. These findings underscore the pressing need for a regional initiative specifically targeting agricultural land degradation to enhance food security, reduce poverty, and support sustainable and resilient agrifood systems. Full article
(This article belongs to the Special Issue Strategies for Resilient and Sustainable Agri-Food Systems)
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18 pages, 917 KiB  
Article
The Cult of St Publius in the Componimento Storico of Padre Pelagio Mifsud Gauci Piscopo
by Martin Micallef
Religions 2025, 16(5), 545; https://doi.org/10.3390/rel16050545 - 24 Apr 2025
Viewed by 570
Abstract
This study presents what Padre Pelagio Mifsud Gauci Piscopo (1708–1781) wrote about the origins of the cult of St Publius both in Rome and in Malta, followed by a list of the miracles performed through the Saint’s intercession during the period mentioned by [...] Read more.
This study presents what Padre Pelagio Mifsud Gauci Piscopo (1708–1781) wrote about the origins of the cult of St Publius both in Rome and in Malta, followed by a list of the miracles performed through the Saint’s intercession during the period mentioned by Padre Pelagio in his writings about the saint. In so doing, we will try to show how Padre Pelagio’s writings on St Publius are an affirmation of those characteristics which, according to him, identify Malta as a distinct nation, with its own history, beliefs, traditions and language. In other words, Padre Pelagio’s writings on this Saint are related to ulterior motives, namely, the search for the roots of a national identity that includes, among others, the element of Christianity, bestowed by St Paul the Apostle, and transmitted from one generation to another in spite of the long Arabic domination. Full article
(This article belongs to the Special Issue Casta Meretrix: The Paradox of the Christian Church Through History)
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16 pages, 843 KiB  
Article
Is It Time to Address Burnout in the Military? Initial Psychometric Validation of the Maslach Burnout Inventory Among Tunisian Military Personnel (A-MBI-MP)
by Ghada Boussayala, Amayra Tannoubi, John Elvis Hagan, Mustapha Amoadu, Medina Srem-Sai, Tore Bonsaksen, Hamdi Henchiri, Mohamed Karim Chtioui, Lotfi Bouguerra and Fairouz Azaiez
Behav. Sci. 2025, 15(3), 385; https://doi.org/10.3390/bs15030385 - 19 Mar 2025
Viewed by 1011
Abstract
The military’s high-pressure environment can lead to burnout syndrome, characterized by emotional fatigue, depersonalization, and decreased personal accomplishment. Validating a culturally appropriate tool for assessing burnout among military personnel is crucial for early detection and intervention. This study assessed the psychometric properties of [...] Read more.
The military’s high-pressure environment can lead to burnout syndrome, characterized by emotional fatigue, depersonalization, and decreased personal accomplishment. Validating a culturally appropriate tool for assessing burnout among military personnel is crucial for early detection and intervention. This study assessed the psychometric properties of the Arabic version of the Maslach Burnout Inventory (MBI) and its validity among Tunisian military personnel. A validation study was conducted among 520 Tunisian military personnel (mean age = 36 ± 9.3 years; male (n = 486) and female (n = 34)), including commandos, pilots, and divers. The Arabic version of the Maslach Burnout Inventory MBI-HSS was administered, including participants’ sociodemographic characteristics. The exploratory (EFA) and confirmatory (CFA) factor analyses were performed to identify the factor structure, with assessments of the internal consistency of the model. The factor analysis confirmed the three-factor model of burnout: emotional exhaustion, depersonalization, and personal accomplishment consistent with the original MBI. The A-MBI-MP demonstrated strong internal consistency, with Cronbach’s alpha values exceeding 0.8 for all subscales. The test–retest reliability was also excellent, confirming the stability of the instrument. The CFA validated the three-factor structure of the A-MBI-MP. The fit indices demonstrated an acceptable model fit: Comparative Fit Index (CFI) = 0.949, Tucker–Lewis Index (TLI) = 0.943, and Root Mean Square Error of Approximation (RMSEA) = 0.0742 (95% CI: 0.068–0.0797). These results validate the reliability of the A-MBI-MP in assessing burnout in the military context. The Arabic version of the Maslach Burnout Inventory (A-MBI-MP) is a valid and reliable tool for assessing burnout among Tunisian military personnel. The validated instrument can be used to offer early treatments and to promote the mental health of military personnel in high-stress situations. Full article
(This article belongs to the Section Psychiatric, Emotional and Behavioral Disorders)
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35 pages, 4197 KiB  
Review
New Insights in Natural Bioactive Compounds for Periodontal Disease: Advanced Molecular Mechanisms and Therapeutic Potential
by Nada Tawfig Hashim, Rasha Babiker, Nallan C. S. K. Chaitanya, Riham Mohammed, Sivan Padma Priya, Vivek Padmanabhan, Ayman Ahmed, Shahista Parveen Dasnadi, Md Sofiqul Islam, Bakri Gobara Gismalla and Muhammed Mustahsen Rahman
Molecules 2025, 30(4), 807; https://doi.org/10.3390/molecules30040807 - 10 Feb 2025
Cited by 4 | Viewed by 3161
Abstract
Periodontal disease is a chronic inflammatory condition that destroys the tooth-supporting structures due to the host’s immune response to microbial biofilms. Traditional periodontal treatments, such as scaling and root planing, pharmacological interventions, and surgical procedures, have significant limitations, including difficulty accessing deep periodontal [...] Read more.
Periodontal disease is a chronic inflammatory condition that destroys the tooth-supporting structures due to the host’s immune response to microbial biofilms. Traditional periodontal treatments, such as scaling and root planing, pharmacological interventions, and surgical procedures, have significant limitations, including difficulty accessing deep periodontal pockets, biofilm recolonization, and the development of antibiotic resistance. In light of these challenges, natural bioactive compounds derived from plants, herbs, and other natural sources offer a promising alternative due to their anti-inflammatory, antioxidant, antimicrobial, and tissue-regenerative properties. This review focuses on the molecular mechanisms through which bioactive compounds, such as curcumin, resveratrol, epigallocatechin gallate (EGCG), baicalin, carvacrol, berberine, essential oils, and Gum Arabic, exert therapeutic effects in periodontal disease. Bioactive compounds inhibit critical inflammatory pathways like NF-κB, JAK/STAT, and MAPK while activating protective pathways such as Nrf2/ARE, reducing cytokine production and oxidative stress. They also inhibit the activity of matrix metalloproteinases (MMPs), preventing tissue degradation and promoting healing. In addition, these compounds have demonstrated the potential to disrupt bacterial biofilms by interfering with quorum sensing, targeting bacterial cell membranes, and enhancing antibiotic efficacy.Bioactive compounds also modulate the immune system by shifting the balance from pro-inflammatory to anti-inflammatory responses and promoting efferocytosis, which helps resolve inflammation and supports tissue regeneration. However, despite the promising potential of these compounds, challenges related to their poor bioavailability, stability in the oral cavity, and the absence of large-scale clinical trials need to be addressed. Future strategies should prioritize the development of advanced delivery systems like nanoparticles and hydrogels to enhance bioavailability and sustain release, alongside long-term studies to assess the effects of these compounds in human populations. Furthermore, combining bioactive compounds with traditional treatments could provide synergistic benefits in managing periodontal disease. This review aims to explore the therapeutic potential of natural bioactive compounds in managing periodontal disease, emphasizing their molecular mechanisms of action and offering insights into their integration with conventional therapies for a more comprehensive approach to periodontal health. Full article
(This article belongs to the Special Issue Biomanufacturing of Natural Bioactive Compounds)
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25 pages, 7853 KiB  
Article
The Effects of Cross-Legged Sitting on the Lower Limb Muscles and Body Balance and the Implications in Rehabilitation
by Hadeel Alsirhani, Abdullah Alzahrani, Graham Arnold and Weijie Wang
Appl. Sci. 2025, 15(3), 1190; https://doi.org/10.3390/app15031190 - 24 Jan 2025
Viewed by 1904
Abstract
Background: Although a cross-legged sitting (CLS) posture has been commonly practiced as a daily activity, particularly in Arabic, Middle Eastern, and Asian societies, there is no medical study focusing on the effects of cross-legged sitting on body balance and muscular strength. Therefore, this [...] Read more.
Background: Although a cross-legged sitting (CLS) posture has been commonly practiced as a daily activity, particularly in Arabic, Middle Eastern, and Asian societies, there is no medical study focusing on the effects of cross-legged sitting on body balance and muscular strength. Therefore, this study aimed to investigate the effect of CLS on lower extremity muscular strength, muscular electrical activity, and body balance. Methods: Thirty healthy volunteers participated in this research study by performing CLS for a 20 min duration. The balance tests included a static test, i.e., a single-leg-standing posture with eyes closed, to assess if the centre of the pelvis and centre of the shoulders (CoS) moved, and a dynamic test, i.e., four-square-returning, to assess if the moving speed changed. Regarding the muscular assessment, the electrical activity was assessed depending on the maximal value of activation and rooted mean of squared values, while the muscular strength was assessed according to the maximum force by the lower limbs using a force sensor. The balance and muscular results were statistically compared before and after CLS. Results: The duration of the static balance after CLS decreased by an average of 2.5 s, or approximately 15.64%, compared to before CLS (p < 0.05 *). Further, the Centre of Pelvis moved greater distances in the medial–lateral direction after CLS compared to before, but CoS was not significantly changed in the static balance test. However, in the dynamic balance test, the duration significantly decreased by 0.2 s, or approximately 8.5%, after CLS compared to before, meaning that dynamic balance ability improved. Considering the muscle results, only the lateral gastrocnemius muscle was noticeably electrically activated after CLS, while the hip extensor and knee flexor muscles became significantly stronger after CLS compared to before, roughly by about 14%, and the ankle plantar flexor maximum force increased noticeably, by about 4%, after CLS. Conclusions: CLS had a positive impact on the dynamic balance; the strength of the hip extensor, knee flexor, and ankle plantar flexion; and all lower limb muscles, in terms of electrical stimulation, except for the lateral gastrocnemius post-CLS compared to pre-CLS. Therefore, CLS can be safely included in one’s daily routine and in any rehabilitation programme, except for patients who are suffering from static balance disturbance. Although this posture is commonly used in many societies, because this is the first study focused on the impact of CLS on body balance and muscular status, the results would supply knowledge and new understanding, as well as provide clear insight for sitting posture research. Full article
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37 pages, 2022 KiB  
Article
Probing the Relationships Between Mandaeans (the Followers of John the Baptist), Early Christians, and Manichaeans
by Brikha H. S. Nasoraia
Religions 2025, 16(1), 14; https://doi.org/10.3390/rel16010014 - 27 Dec 2024
Viewed by 3714
Abstract
Mandaeism is the only ancient Gnostic religion surviving to the present day from antiquity. ‘Gnosticism’ was a block of creative religious activity mostly responding to the early Christian teachings in unusual ways of cosmicizing Jesus, and presenting a challenge to the ancient church [...] Read more.
Mandaeism is the only ancient Gnostic religion surviving to the present day from antiquity. ‘Gnosticism’ was a block of creative religious activity mostly responding to the early Christian teachings in unusual ways of cosmicizing Jesus, and presenting a challenge to the ancient church fathers in the first-to-third centuries CE. Mandaeism, by comparison, has roots from John the Baptist rather than Jesus, although it is also important to recognize that this baptizing movement emerged in part as a survival of a very old indigenous ethno-religious grouping from Mesopotamia, its followers eventually settling in Mesopotamia’s middle and southern regions. Indeed, much of the Mandaeans’ thought and practice, especially their rituals of water ablution, have deep origins going back to Sumer, Akkad and Babylonia, reflecting regionally wide influences from right across the Fertile Crescent. Mandaean culture and the Mandaic Aramaic language was of high report in the so-called Patristic period covered by this Special Issue, even in the Arabian Peninsula up until the rise of Islam (634 CE onward), and Mandaeans were honored as a third “People of the Book”—the Sabians (Ṣābeʾun; or ṣobba in modern Iraqi Arabic)—in the Qur’an (2:62; 5:69; 22:17); in the Muslim world, many Mandaic speakers switched language to colloquial Iraqi Arabic and (Arabicized) Persian. This article aims to raise some basic questions, relevant to Patristics, about aspects of relationships between Mandaeans and both early ‘mainstream’ Christians and the other large grouping, the Manichaeans. These questions first concern the common flight of the followers of John and Jesus just before the Roman siege and destruction of Jerusalem (66–70 CE) and the role of the woman Miriai; second, the extent to which John and his followers affected the direction of early Christianity, and the consequences this had for ‘Baptist’/Christian relationships into the Patristic period, with attention paid to Mandaean views of Jesus; third, the process of the formation of early Mandaeism as it combined Hellenistic-Palestinian and Mesopotamian elements; and fourth, the signs that the Mandaeans not only influenced Mesopotamian Christian baptismal sects but were crucial in the emergence Manichaeism (from the 230s CE in Persian-dominated Iraq). This article will finish by concentrating on Mandaean–Manichaean relations in the light of a little known and previously secret Mandaic text (Diwan Razia), best known as Mani or Sidra d-Mani within a larger collection of unnamed occult texts. On the basis of the Mandaeans’ texts, we maintain that both Jesus and Mani apparently left their fold in turn. Full article
(This article belongs to the Special Issue Patristics: Essays from Australia)
13 pages, 317 KiB  
Article
Reaffirming Loyalty and Legitimacy: Representations of Hui Multi-Layered Identity in Bai Lian’s “Mountain Pass”
by Mario De Grandis
Humanities 2024, 13(6), 141; https://doi.org/10.3390/h13060141 - 22 Oct 2024
Viewed by 863
Abstract
In the People’s Republic of China (PRC), the Cultural Revolution (1966–1976) left many writers severed from their cultural roots. Starting in the 1980s, literary authors sought to address this disconnection by turning their attention to rural communities. This tendency is exemplified by the [...] Read more.
In the People’s Republic of China (PRC), the Cultural Revolution (1966–1976) left many writers severed from their cultural roots. Starting in the 1980s, literary authors sought to address this disconnection by turning their attention to rural communities. This tendency is exemplified by the emergence of two significant trends: root-seeking literature and new fiction from Tibet. Root-seeking authors focused on local customs, marginalized cultures, and minority groups to reinvigorate Chinese literature and fill the perceived cultural void. Around the same time, new fiction from Tibet featured diverse responses to post-Mao changes, with some idealizing Tibet as a repository of “authentic” traditions, while others criticized its perceived backwardness. Both trends have been interpreted in scholarship as responses, often critical, to state policies. The short story “Mountain Pass” (1985) by Hui writer Bai Lian intersects with these movements temporally and thematically. However, unlike them, Bai Lian’s portrayal of rural communities emphasizes the Hui’s historical role in resisting the Qing empire, pivotal to the emergence of the PRC, while also highlighting the group’s Arab and Persian origins. This three-layered identification with the local, national, and transnational enriches our understanding of the 1980s literary landscape, challenging the notion that this era was solely characterized by resistance to the central state. Full article
(This article belongs to the Section Literature in the Humanities)
11 pages, 220 KiB  
Article
Ecocritical Concerns in the Selected Poems of Mahmoud Darwish and Naomi Shihab Nye
by Amna Shamim
Humanities 2024, 13(5), 135; https://doi.org/10.3390/h13050135 - 16 Oct 2024
Cited by 1 | Viewed by 2352
Abstract
Ecocriticism is an advancing field in literature that has opened up avenues in reading world literature from a whole new perspective. This paper seeks to flesh out ecocritical concerns in the selected poems of Mahmoud Darwish and Naomi Shihab Nye by using selected [...] Read more.
Ecocriticism is an advancing field in literature that has opened up avenues in reading world literature from a whole new perspective. This paper seeks to flesh out ecocritical concerns in the selected poems of Mahmoud Darwish and Naomi Shihab Nye by using selected concepts of the theory of ecocriticism given by Greg Garrard: pastoral, wilderness, and the sublime. An analysis of the poetry by the selected writers, sharing their roots from the Arab world, reveals their agenda of using nature as a trope in the form of resistance to colonialism. The writers give a glimpse of the people of their homeland and their culture imbued in nature. Full article
23 pages, 1210 KiB  
Review
Waters of Contention: The GERD and Its Impact on Nile Basin Cooperation and Conflict
by Amna Almesafri, Sohaila Abdulsattar, Alia Alblooshi, Raed A. Al-Juboori, Nicholas Jephson and Nidal Hilal
Water 2024, 16(15), 2174; https://doi.org/10.3390/w16152174 - 31 Jul 2024
Cited by 3 | Viewed by 8783
Abstract
The Grand Ethiopian Renaissance Dam (GERD) on the Nile River has become a focal point in the fields of water diplomacy, economics, and environmental considerations in the Nile Basin. Announced during the Arab Spring in 2011, the GERD aims to address Ethiopia’s significant [...] Read more.
The Grand Ethiopian Renaissance Dam (GERD) on the Nile River has become a focal point in the fields of water diplomacy, economics, and environmental considerations in the Nile Basin. Announced during the Arab Spring in 2011, the GERD aims to address Ethiopia’s significant energy shortfall and foster regional economic growth by potentially doubling the country’s electricity output. However, this ambition has heightened tensions with downstream countries, especially Egypt and Sudan, which rely heavily on the Nile for their water needs. This paper examines the ongoing conflict surrounding the GERD, focusing on the deadlock situation despite considerable scholarly attention to its economic, political, and environmental dimensions. The analysis presented in this paper reveals the roots of contention by analyzing past treaties and the present negotiation status, illustrating the complex interplay between development goals, environmental sustainability, and regional water security. The paper advocates for a revised legal framework that moves beyond past agreements towards a more inclusive, cooperative management strategy for the Nile’s waters. It proposes the development of a new treaty between Egypt, Ethiopia, and Sudan, grounded in their 2015 Declaration of Principles agreement and inspired by successful international dispute resolutions. It also discusses the potential of neutral third-party interventions to facilitate unbiased negotiations grounded in the Graph Model for Conflict Resolution, emphasizing the importance of equitable and sustainable water governance. In essence, this research calls for a collaborative approach to resolve the GERD conflict, emphasizing the need for agreements that harmonize developmental ambitions with the water security of the Nile Basin nations. Full article
(This article belongs to the Section Water Resources Management, Policy and Governance)
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16 pages, 314 KiB  
Article
May I Come In? EU Policies to Control Migration: The EUTF
by Ana Beatriz da Costa Mangueira
Soc. Sci. 2024, 13(7), 377; https://doi.org/10.3390/socsci13070377 - 22 Jul 2024
Viewed by 2025
Abstract
What types of policies has the European Union (EU) implemented to control migration flows in recent decades, and what are their strategies? This paper aims to explore the measures developed by the EU to manage migration flows and identify how they operate. While [...] Read more.
What types of policies has the European Union (EU) implemented to control migration flows in recent decades, and what are their strategies? This paper aims to explore the measures developed by the EU to manage migration flows and identify how they operate. While a securitisation approach, such as activities of border control, has been widely discussed by scholars in this field, it is worth exploring and understanding other kinds of instruments aimed at curbing irregular flows through executing programs such as the Emergency Trust Fund for Africa (EUTF), developed in the aftermath of the Arab uprisings to address the “root causes” of the displacement. In light of this, this research conducts a case study and qualitative content and descriptive analysis of documents on the EUTF. Preliminary findings indicate patterns in what motivated the EU to undertake these actions and present the main strategies of the Fund in the North Africa region. However, some factors may have led to disappointing outcomes for the EUTF, such as the increase, in 2019, of nationals leaving the North Africa region towards Europe, as reported by UNDESA. Full article
(This article belongs to the Special Issue Globalization and International Migration to the EU)
16 pages, 845 KiB  
Article
WASTA in Arab Societies: Optimizing or Worsening Quality of Life? The Role of Religiosity
by Ibrahim A. Elsaher
Societies 2024, 14(7), 101; https://doi.org/10.3390/soc14070101 - 27 Jun 2024
Cited by 1 | Viewed by 3361
Abstract
WASTA, a word widely used in Arab society, implies using people’s connections to generate mutual advantages. WASTA is rooted deeply in the culture of Arab societies and has a double effect that stimulates a continuous argument. On one hand, WASTA is considered a [...] Read more.
WASTA, a word widely used in Arab society, implies using people’s connections to generate mutual advantages. WASTA is rooted deeply in the culture of Arab societies and has a double effect that stimulates a continuous argument. On one hand, WASTA is considered a valuable social practice that optimizes social bonds and dual support to improve the overall quality of life (QoL) for all parties. In contrast, WASTA is regularly criticized for extending inequality and corruption in the community, which might worsen QoL, taking into consideration the mediating impacts of religiosity. This paper investigated the dual effects of WASTA on QoL and the mediating role of religiosity in Arab societies. Three hundred and ninety small- and medium-sized enterprises’ (SMEs’) owners in Saudi Arabia participated in a self-structured questionnaire that was analyzed using PLS-SEM. The results showed that the appearance of some dimensions of WASTA in Arab societies can optimize QoL. At the same time, other elements can worsen the QoL of the participating parties, but the adverse effect can be mitigated when religiosity is a mediator. These results suggest that WASTA can act as a positive connection method in Arab societies when accompanied by religiosity but can accelerate corruption in its absence; several practical and theoretical implications were discussed and elaborated. Full article
(This article belongs to the Special Issue Healthy Lifestyle: The Relevance of Health Promotion for Society)
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19 pages, 9226 KiB  
Article
Sensitivity Analysis of the Inverse Distance Weighting and Bicubic Spline Smoothing Models for MERRA-2 Reanalysis PM2.5 Series in the Persian Gulf Region
by Alina Bărbulescu and Youssef Saliba
Atmosphere 2024, 15(7), 748; https://doi.org/10.3390/atmos15070748 - 22 Jun 2024
Cited by 3 | Viewed by 1323
Abstract
Various studies have proved that PM2.5 pollution significantly impacts people’s health and the environment. Reliable models on pollutant levels and trends are essential for policy-makers to decide on pollution reduction. Therefore, this research presents the sensitivity analysis of the Bicubic Spline Smoothing [...] Read more.
Various studies have proved that PM2.5 pollution significantly impacts people’s health and the environment. Reliable models on pollutant levels and trends are essential for policy-makers to decide on pollution reduction. Therefore, this research presents the sensitivity analysis of the Bicubic Spline Smoothing (BSS) and Inverse Distance Weighting (IDW) models built for the PM2.5 monthly series from MERRA-2 Reanalysis collected during January 2010–April 2017 in the region of the Persian Gulf, in the neighborhood of the United Arab Emirates Coast. The models’ performances are assessed using the Mean Absolute Error (MAE), Root Mean Square Error (RMSE), and Mean Absolute Percentage Error (MAPE). RMSE, Mean Bias Error (MBE), and Nash–Sutcliff Efficiency (NSE) were utilized to assess the models’ sensitivity to various parameters. For the IDW, the Mean RMSE decreases as the power parameter increases from 1 to approximately 4 (the optimal beta value) and then stabilizes with a further increase. NSE values close to 1 indicate that the model’s predictions are very efficient in capturing the variance of the observed data. NSE is almost constant as a function of the number of neighbors and the parameter when β > 4. In BSS, the RMSE and NBE plots suggest that incorporating more points into the mean calculation for buffer points leads to a general decrease in model accuracy. Moreover, the MBE plot shows that the mean bias error initially increases with the number of points but then starts to plateau. The increasing trend suggests that the model tends to systematically overestimate the PM2.5 values as more points are included. The leveling-off of the curve indicates that beyond a certain number of points, the bias introduced by including additional points does not significantly increase, suggesting a threshold beyond which further inclusion of points does not markedly change the mean bias. It was also proved that the methods’ generalizability may depend on the dataset’s specific spatial characteristics. Full article
(This article belongs to the Special Issue Measurement and Variability of Atmospheric Ozone)
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18 pages, 6053 KiB  
Article
Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood
by Megan Leonard, Broderick Dickerson, Landry Estes, Drew E. Gonzalez, Victoria Jenkins, Sarah Johnson, Dante Xing, Choongsung Yoo, Joungbo Ko, Martin Purpura, Ralf Jäger, Mark Faries, Wesley Kephart, Ryan Sowinski, Christopher J. Rasmussen and Richard B. Kreider
Nutrients 2024, 16(12), 1813; https://doi.org/10.3390/nu16121813 - 8 Jun 2024
Cited by 16 | Viewed by 33233
Abstract
Background: Ashwagandha has been reported to reduce stress and attenuate cognitive decline associated with inflammation and neurodegeneration in clinical populations. However, the effects as a potential nootropic nutrient in younger populations are unclear. This study examined the effects of liposomal ashwagandha supplementation on [...] Read more.
Background: Ashwagandha has been reported to reduce stress and attenuate cognitive decline associated with inflammation and neurodegeneration in clinical populations. However, the effects as a potential nootropic nutrient in younger populations are unclear. This study examined the effects of liposomal ashwagandha supplementation on cognitive function, mood, and markers of health and safety in healthy young men and women. Methods: 59 men and women (22.7 ± 7 yrs., 74.9 ± 16 kg, 26.2 ± 5 BMI) fasted for 12 h, donated a fasting blood sample, and were administered the COMPASS cognitive function test battery (Word Recall, Word recognition, Choice Reaction Time Task, Picture Recognition, Digit Vigilance Task, Corsi Block test, Stroop test) and profile of mood states (POMS). In a randomized and double-blind manner, participants were administered 225 mg of a placebo (Gum Arabic) or ashwagandha (Withania somnifera) root and leaf extract coated with a liposomal covering. After 60-min, participants repeated cognitive assessments. Participants continued supplementation (225 mg/d) for 30 days and then returned to the lab to repeat the experiment. Data were analyzed using a general linear model (GLM) univariate analysis with repeated measures and pairwise comparisons of mean changes from baseline with 95% confidence intervals (CI). Results: Ashwagandha supplementation improved acute and/or 30-day measures of Word Recall (correct and recalled attempts), Choice Reaction Time (targets identified), Picture Recognition (“yes” correct responses, correct and overall reaction time), Digit Vigilance (correct reaction time), Stroop Color-Word (congruent words identified, reaction time), and POMS (tension and fatigue) from baseline more consistently with several differences observed between groups. Conclusion: Results support contentions that ashwagandha supplementation (225 mg) may improve some measures of memory, attention, vigilance, attention, and executive function while decreasing perceptions of tension and fatigue in younger healthy individuals. Retrospectively registered clinical trial ISRCTN58680760. Full article
(This article belongs to the Special Issue The Effect of Nutrients on Neurological Disorders)
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